<template>
  <div>
    <el-container>
      <el-header class="homeHeader">
        <div class="title">讲座管理系统</div>
        <div>

          <el-dropdown class="userInfo" @command="commandHandler">
            <span class="el-dropdown-link">
              {{ user.name }}<i><img src="../assets/head.png" alt="" /></i>
            </span>
            <el-dropdown-menu slot="dropdown">
              <el-dropdown-item command="userinfo">个人中心</el-dropdown-item>
              <el-dropdown-item command="logout">注销登录</el-dropdown-item>
            </el-dropdown-menu>
          </el-dropdown>
        </div>
      </el-header>
      <el-container>
        <el-aside width="200px">
          <el-menu router unique-opened>
            <el-submenu
              :index="index + ''"
              v-for="(item, index) in routes"
              :key="index"
            >
              <template slot="title">
                <span >{{ item.name }}</span>
              </template>
              <el-menu-item
                :index="children.path"
                v-for="(children, indexj) in item.children"
                :key="indexj"

              >
                {{ children.name }}
              </el-menu-item>
            </el-submenu>
          </el-menu>
        </el-aside>
        <el-main>
          <el-breadcrumb v-if="this.$router.currentRoute.path !== '/home'">
            <el-breadcrumb-item :to="{ path: '/home' }"
              >首页</el-breadcrumb-item
            >
            <el-breadcrumb-item>{{
              this.$router.currentRoute.name
            }}</el-breadcrumb-item>
          </el-breadcrumb>
          <div
            class="homeWelcome"
            v-if="this.$router.currentRoute.path === '/home'"
          >
            欢迎来到讲座管理系统
          </div>
          <router-view class="homeRouterView"></router-view>
        </el-main>
      </el-container>
    </el-container>
  </div>
</template>

<script>
export default {
  name: "Home",
  data() {
    return {};
  },
  computed: {
    routes() {
      return this.$store.state.routes;
    },
    user() {
      return this.$store.state.currentAdmin;
    },
  },
  methods: {

    commandHandler(command) {
      if (command === "logout") {
        this.$confirm("是否退出登录", "提示", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        })
          .then(() => {
            //  注销登录
            this.postRequest("/logout");
            //清空用户信息
            window.sessionStorage.removeItem("user");
            window.sessionStorage.removeItem("tokenStr");

            //  清空菜单
            this.$store.commit("initRoutes", []);
            // 跳转到登录页面
            this.$router.replace("/");
          })
          .catch(() => {
            this.$message({
              type: "info",
              message: "已取消注销登录",
            });
          });
      } else if (command === "userinfo") {
        this.$router.push("/userinfo");
      }
    },
  },
};
</script>

<style>
.homeHeader {
  background-color: #409eff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  box-sizing: border-box;
}
.homeHeader .title {
  font-size: 30px;
  font-family: 华文楷体;
  color: #FFFFFF;
}
.homeHeader .userInfo {
  cursor: pointer;
}
.homeHeader .userInfo img {
  width: 48px;
  height: 48px;
  border-radius: 24px;
  margin-left: 8px;
}
.homeWelcome {
  text-align: center;
  font-size: 30px;
  font-family: "华文楷体";
  color: #409eff;
  padding-top: 50px;
}
.homeRouterView {
  margin-top: 20px;
}
.el-dropdown-link{
  display: flex;
  align-items: center;
}
.el-dropdown-link img{
  width: 48px;
  height: 48px;
  border-radius: 24px;
  margin-left: 10px;
}

</style>